| Peisey-Nancroix | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason ville fr Peisey-Nancroix (Savoie).svg |
| Arrondissement: | Albertville |
| Canton: | Bourg-Saint-Maurice |
| Insee: | 73197 |
| Postal Code: | 73210 |
| Mayor: | Guillaume Villibord[1] |
| Term: | 2020 - 2026 |
| Coordinates: | 45.5472°N 6.7569°W |
| Elevation Min M: | 1100 |
| Elevation Max M: | 3779 |
| Area Km2: | 70.64 |
Peisey-Nancroix (in French pronounced as /pɛzɛ nɑ̃kʁwa/; Péjèy) is a commune in the Savoie department in the Auvergne-Rhône-Alpes region in southeastern France.
Peisey-Nancroix has a humid continental climate (Köppen climate classification Dfb) closely bordering on an oceanic climate (Cfb). The average annual temperature in Peisey-Nancroix is . The average annual rainfall is with December as the wettest month. The temperatures are highest on average in July, at around, and lowest in January, at around . The highest temperature ever recorded in Peisey-Nancroix was on 27 June 2019; the coldest temperature ever recorded was on 11 February 1956.